Bityite
http://dbpedia.org/resource/Bityite an entity of type: Thing
La bityita és un mineral de la classe dels silicats, que pertany al grup de les miques. Rep el nom pel mont Ibity, un massís de 2292 m d'alta muntanya, un punt de referència proper a la zona de la localitat tipus.
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Bityite is considered a rare mineral, and it is an endmember to the margarite mica sub-group found within the phyllosilicate group. The mineral was first described by Antoine François Alfred Lacroix in 1908, and later its chemical composition was concluded by Professor Hugo Strunz. Bityite has a close association with beryl, and it generally crystallizes in pseudomorphs after it, or in cavities associated with reformed beryl crystals. The mineral is considered a late-stage constituent in lithium bearing pegmatites, and has only been encountered in a few localities throughout the world. The mineral was named by Lacroix after Mt. Bity, Madagascar from where it was first discovered.
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Bityita silikato motako minerala da eta brittle mica taldearen kidea da.
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La bityite è un minerale appartenente al gruppo delle miche.
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Bityite
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Bityita
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Bityita
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Bityite
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Bityite
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Bityite
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25201777
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1071626233
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9
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Mica group
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Prismatic
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Pearly white, grayish blue, greenish blue, light brown
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5.5
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C2/c
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Measured: 35° to 52°
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La bityita és un mineral de la classe dels silicats, que pertany al grup de les miques. Rep el nom pel mont Ibity, un massís de 2292 m d'alta muntanya, un punt de referència proper a la zona de la localitat tipus.
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Bityite is considered a rare mineral, and it is an endmember to the margarite mica sub-group found within the phyllosilicate group. The mineral was first described by Antoine François Alfred Lacroix in 1908, and later its chemical composition was concluded by Professor Hugo Strunz. Bityite has a close association with beryl, and it generally crystallizes in pseudomorphs after it, or in cavities associated with reformed beryl crystals. The mineral is considered a late-stage constituent in lithium bearing pegmatites, and has only been encountered in a few localities throughout the world. The mineral was named by Lacroix after Mt. Bity, Madagascar from where it was first discovered.
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Bityita silikato motako minerala da eta brittle mica taldearen kidea da.
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La bityite è un minerale appartenente al gruppo delle miche.
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δ = 0.010
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Perfect micaceous on {001}
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71.02
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Transparent to translucent
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Strong
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CaLiAl2O102
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Uneven
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Dense, micaceous aggregates or rosettes and encrustations
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Bty
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Vitreous, pearly on cleavages
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3
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Biaxial
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nα = 1.651 nβ = 1.659 nγ = 1.661
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10829